I'll be speaking in May at the O'Reilly Emerging Technology Conference in Santa Clara on the topic, Web Services for the Real World: A User-Centered Examination. If the conference is anything like last fall's P2P and Web Services Conference, it should be packed with great sessions, brilliant speakers, and really interesting attendees.
I was on a high for weeks after the P2P conference; it got my brain buzzing again about all kinds of exciting things, including the ideas for what may be the next big thing in my life. I can't think of a better conference that I've attended, ever, so I have high hopes for "e-tech" (as do others, Cory says, "this con will kick ass"). If it's at all in your budget and is stuff you're interested in, you should check it out.